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5657138404
This converts all the 32-bit platforms to use the expanded device-tree which is a pretty mechanical change. Unlike 64-bit, the 32-bit kernel didn't rely on platform initializations to setup the MMU since it sets it up entirely before probe_machine() so the move has comparatively less consequences though it's a bigger patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/*
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* arch/powerpc/platforms/83xx/mpc837x_rdb.c
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*
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* Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
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*
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* MPC837x RDB board specific routines
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/pci.h>
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#include <linux/of_platform.h>
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#include <asm/time.h>
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#include <asm/ipic.h>
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#include <asm/udbg.h>
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#include <sysdev/fsl_soc.h>
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#include <sysdev/fsl_pci.h>
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#include "mpc83xx.h"
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static void mpc837x_rdb_sd_cfg(void)
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{
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void __iomem *im;
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im = ioremap(get_immrbase(), 0x1000);
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if (!im) {
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WARN_ON(1);
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return;
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}
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/*
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* On RDB boards (in contrast to MDS) USBB pins are used for SD only,
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* so we can safely mux them away from the USB block.
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*/
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clrsetbits_be32(im + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USBB_MASK,
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MPC837X_SICRL_SD);
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clrsetbits_be32(im + MPC83XX_SICRH_OFFS, MPC837X_SICRH_SPI_MASK,
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MPC837X_SICRH_SD);
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iounmap(im);
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}
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/* ************************************************************************
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*
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* Setup the architecture
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*
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*/
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static void __init mpc837x_rdb_setup_arch(void)
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{
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if (ppc_md.progress)
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ppc_md.progress("mpc837x_rdb_setup_arch()", 0);
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mpc83xx_setup_pci();
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mpc837x_usb_cfg();
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mpc837x_rdb_sd_cfg();
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}
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machine_device_initcall(mpc837x_rdb, mpc83xx_declare_of_platform_devices);
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static const char * const board[] __initconst = {
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"fsl,mpc8377rdb",
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"fsl,mpc8378rdb",
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"fsl,mpc8379rdb",
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"fsl,mpc8377wlan",
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NULL
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};
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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static int __init mpc837x_rdb_probe(void)
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{
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return of_device_compatible_match(of_root, board);
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}
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define_machine(mpc837x_rdb) {
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.name = "MPC837x RDB/WLAN",
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.probe = mpc837x_rdb_probe,
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.setup_arch = mpc837x_rdb_setup_arch,
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.init_IRQ = mpc83xx_ipic_init_IRQ,
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.get_irq = ipic_get_irq,
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.restart = mpc83xx_restart,
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.time_init = mpc83xx_time_init,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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